burdock

名词 burdock:

1. any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs
   同义词：clotbur

bur.dock

n.（名词）
Any of several weedy, chiefly biennial plants of the genusArctium in the composite family, having pink or purplish flower heads surrounded by prickly bracts and forming a bur in fruit.
牛蒡：任一种杂草，主要是菊科牛蒡属 的两年生植物，开粉红色或略带紫色的花穗，并被带有多刺的苞所包围，形成果实中的刺果

来源：
bur
bur
dock 4
dock4